Find out
the number of conjugate-gradient iterations needed for the gradient regularization method to achieve a result
comparable with the preconditioning method.

Find out
the number of iterations (10) needed for the shaping regularization method to achieve a result
comparable with the preconditioning method.

What can you conclude about the four methods used in this comparison?

EXTRA CREDIT Participate in the Spatial Interpolation Contest. Find and
implement a method that would provide a better interpolation of the
missing values than either of the methods we tried so far. You can
change any of the parameters in the existing methods or write your own
program but you can use only the 100 original data points as input.